// chute d'un corps


V0 = 0;
dt = 0.5;
T = 20.;
g = 9.81;
m = 70.;
k = 0.27;

time = [0:dt:dt*floor(T/dt)];

VV1 = eulerE(V0);

VV2 = eulerI(V0);

VV3 = pointmilieu(V0);

VV4 = solexacte();

figure(1);
plot2d(time',[VV1',VV2',VV3',VV4'],[1,2,3,4],leg="EulerE@EulerI@point milieu @exact)");

figure(2);
err = erreurs();
